-90.88% is the change from 559 to 51
Calculation steps:
[( 51 - 559 ) ÷ 559] x 100 = -90.88%
Formula
Percentage change = [(51 - 559) / 559] x 100
Subtract the new number by the original number
51 - 559 = -508
-508 ÷ 559 = -0.9087656529516994
-0.9087656529516994 x 100 = -90.88%